Oppo A31 vs Samsung Galaxy S25 Ultra
The Oppo A31 (2020) runs on the MediaTek Helio P35, while the Samsung Galaxy S25 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Samsung Galaxy S25 Ultra leads — 80/100 vs 25/100 (a 55-point difference). Key differences: the Samsung Galaxy S25 Ultra has the bigger battery (5000 mAh vs 4230); the main camera is 12 MP vs 200 MP; the Samsung Galaxy S25 Ultra is faster in AnTuTu (3,128,552 vs 199,111); the Samsung Galaxy S25 Ultra has NFC for contactless payments, the Oppo A31 doesn't; the Oppo A31 is noticeably lighter (180g vs 218g).
Profile comparison
Category scores
Oppo A31
Samsung Galaxy S25 Ultra
What makes Oppo A31 better?
- Lighter: 180g vs 218g
- Better portability (68/100 vs 46/100)
What makes Samsung Galaxy S25 Ultra better?
- Higher AnTuTu: 3128552 vs 199111
- Better Geekbench Single: 3100 vs 476
- Better Geekbench Multi: 9760 vs 828
- Bigger battery: 5000 vs 4230 mAh
- Better main camera: 200MP vs 12MP
- Higher performance (92/100 vs 19/100)
- Better camera (81/100 vs 10/100)
- Longer battery life (56/100 vs 39/100)
- Better display (88/100 vs 39/100)
Comparison verdict
Comparing the Oppo A31 vs the Samsung Galaxy S25 Ultra, the Samsung Galaxy S25 Ultra scores 55 points higher (80/100 vs 25/100). In the "performance" category, the Samsung Galaxy S25 Ultra leads (92/100 vs 19/100). In the "camera" category, the Samsung Galaxy S25 Ultra leads (81/100 vs 10/100). In the "battery" category, the Samsung Galaxy S25 Ultra leads (56/100 vs 39/100). In the "performance" category, the Samsung Galaxy S25 Ultra significantly outperforms the Oppo A31 (92/100 vs 19/100). In the "display" category, the Samsung Galaxy S25 Ultra significantly outperforms the Oppo A31 (88/100 vs 39/100). In the "camera" category, the Samsung Galaxy S25 Ultra significantly outperforms the Oppo A31 (81/100 vs 10/100). In the "battery" category, the Samsung Galaxy S25 Ultra notably outperforms the Oppo A31 (56/100 vs 39/100). In the "portability" category, the Oppo A31 notably outperforms the Samsung Galaxy S25 Ultra (68/100 vs 46/100).
Specs comparison
| Specification | Oppo A31 | Samsung Galaxy S25 Ultra | |
|---|---|---|---|
| Processor | MediaTek Helio P35 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 199111 | 3128552 | |
| Geekbench Single | 476 | 3100 | |
| Geekbench Multi | 828 | 9760 | |
| Display | 6.5" IPS LCD | 6.9" Dynamic AMOLED 2X | |
| Resolution | 720x1600 | 3120x1440 | |
| Refresh rate | — | 120 Hz | |
| Battery | 4230 mAh | 5000 mAh | |
| Charging | — | 45W | |
| Wireless charging | — | 15W | |
| DXOMark (camera) | — | 151 | |
| Main camera | 12 MP | 200 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 8 MP | 12 MP | |
| RAM | 4GB | 12GB / 16GB | |
| Storage | 128GB | 256GB / 512GB / 1TB | |
| OS | Android 9.0 (Pie); ColorOS 6.1 | Android 15 / One UI 7 | |
| Brightness (peak) | 480 nits | 2600 nits | |
| NFC | no | yes | |
| Protection | — | IP68 | |
| Dimensions | 163.9×75.5×8.3 mm | 162.8×77.6×8.2 mm | |
| Weight | 180 g | 218 g | |
| Launch price | — | $1299 |
Camera comparison
Oppo A31
- Main: 12MP f/1.8
- Front: 8MP
Samsung Galaxy S25 Ultra
- Main: 200MP f/1.7
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 12MP
Display comparison
Oppo A31
- 6.5" IPS LCD
- Resolution: 720x1600
- Refresh rate: —
Samsung Galaxy S25 Ultra
- 6.9" Dynamic AMOLED 2X
- Resolution: 3120x1440
- Refresh rate: 120 Hz
Battery and charging
Oppo A31
- 4230 mAh
- Wireless charging: no data
Samsung Galaxy S25 Ultra
- 5000 mAh
- NanoReview test: web browsing 11:10 hrs, total 28:43 hrs
- Wired: 45W
- Wireless: 15W
Overall performance score
We compared Oppo A31 and Samsung Galaxy S25 Ultra, covering their specs and all relevant benchmarks.
Samsung Galaxy S25 Ultra leads Oppo A31 by 93.6% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Oppo A31
Price unknownDetailed category analysis
performance
In the "performance" category, the Samsung Galaxy S25 Ultra significantly outperforms the Oppo A31 (92/100 vs 19/100).
display
In the "display" category, the Samsung Galaxy S25 Ultra significantly outperforms the Oppo A31 (88/100 vs 39/100).
camera
In the "camera" category, the Samsung Galaxy S25 Ultra significantly outperforms the Oppo A31 (81/100 vs 10/100).
battery
In the "battery" category, the Samsung Galaxy S25 Ultra notably outperforms the Oppo A31 (56/100 vs 39/100).
portability
In the "portability" category, the Oppo A31 notably outperforms the Samsung Galaxy S25 Ultra (68/100 vs 46/100).
Frequently asked questions
Which is better: the Oppo A31 or the Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra significantly outperforms the Oppo A31 by 55 points (80/100 vs 25/100).
What is the rating of the Oppo A31 and the Samsung Galaxy S25 Ultra?
The Oppo A31 has a MobileRank rating of 25/100, the Samsung Galaxy S25 Ultra — 80/100.
Which has the better camera: the Oppo A31 or the Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra leads on camera score (81/100 vs 10/100).
Which is more powerful: the Oppo A31 or the Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra leads on performance (92/100 vs 19/100).
Should you choose the Oppo A31 over the Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra is a better fit for gamers and power users, mobile photography enthusiasts.